package com.lbfamous.strings;

public class CompoundInterest {
    
    public static void main(String[] args) {
        
        final double STARTRATE = 10;
        final int NRATES = 6;
        final int NYEARS = 10;

        double[] interestRate = new double[NRATES];
        for(int j = 0;j < interestRate.length;j++){
            interestRate[j] = (STARTRATE + j)/100.0;
        }

        double[][] balances = new double[NYEARS][NRATES];

        for(int j = 0;j < balances[0].length; j++){
            balances[0][j] = 10000;
        }

        for(int i = 1;i < balances[i].length;i++){

            for(int j = 0;j < balances[j].length;j++){
                
                double oldBalance = balances[i-1][j];
                double interest = oldBalance * interestRate[j];
                balances[i][j] = oldBalance + interest;
            }
        }

        for(int j = 0; j <interestRate.length; j++){
            System.out.printf("%9.0f%%",100 * interestRate[j]);
        }

        System.out.println();

        for(double[] row:balances){
            for(double b:row){
                System.out.printf("%10.2f",b);
            }
            System.out.println();
        }

    }
}

